Age
8-10
Grade
3-5
Karen Price Hossell
Ciphers and Codes
Library Binding
(Heinemann May 7, 2003)
, Reprint edition
Learn about ciphers and codes--the tools used to keep a message secret. See how ciphers were used by the patriots in the American Revolutionary War. Find out how to make your own cipher. In this book, you will discover how flag signals and smoke signals work, see how computers use ciphers and codes today, find out how you can break a cipher without a key.
- Series
- Communicating
- ISBN
- 1588104842 / 9781588104847
- Pages
- 48
- Weight
- 13.6 oz.
- Dimensions
- 7.8 x 0.2 in.
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